2180957 has 2 divisors, whose sum is σ = 2180958. Its totient is φ = 2180956.

The previous prime is 2180923. The next prime is 2180963. The reversal of 2180957 is 7590812.

2180957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2172676 + 8281 = 1474^2 + 91^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180957 - 2⁸ = 2180701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2180357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090478 + 1090479.

It is an arithmetic number, because the mean of its divisors is an integer number (1090479).

2^2180957 is an apocalyptic number.

It is an amenable number.

2180957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180957 is an equidigital number, since it uses as much as digits as its factorization.

2180957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 2180957 is about 1476.8063515573. The cubic root of 2180957 is about 129.6827966650.

The spelling of 2180957 in words is "two million, one hundred eighty thousand, nine hundred fifty-seven".